Fluke 187 user manual Using Fast MN MX, Min Max Avg

Getting Acquainted	2
Using FAST MN MX

Using FAST MN MX

FAST MN MX can capture transient signal events as short as 250 µs, but with decreased accuracy; only 3-1/2 display digits are allowed.

Activate FAST MN MX by pressing O M. As with regular MIN MAX, you can then press M to cycle through maximum, minimum, and average primary displays. The meter beeps for any new minimum or maximum value. Exit FAST MN MX by pressing ON (CANCEL) or by turning the rotary switch.

A low battery condition (flashing B) disables FAST MN MX.

In ac measurement functions, MAX and MIN values are peak values, AVG is the rms value. This provides the necessary information in one display for calculation of Crest Factor (peak/rms).

Due to longer required response times, you cannot use FAST MN MX in the following functions: ohms, diode test, conductance, continuity, capacitance, temperature, ac over dc, ac+dc, Hz, duty cycle, and pulse width.

tc033f.eps

Figure 2-7. Min Max Avg

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